ATI Mobility Radeon HD 4870 vs HD 6990M Crossfire

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Aggregate performance score

We've compared Radeon HD 6990M Crossfire and Mobility Radeon HD 4870, covering specs and all relevant benchmarks.


HD 6990M Crossfire
2011
2x2 GB GDDR5
9.12
+354%

HD 6990M Crossfire outperforms Mobility HD 4870 by a whopping 354% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking522933
Place by popularitynot in top-100not in top-100
ArchitectureTerascale 2 (2009−2015)TeraScale (2005−2013)
GPU code nameBlackcomb XTXM98
Market segmentLaptopLaptop
Release date12 July 2011 (14 years ago)9 January 2009 (17 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores2240800
Core clock speed715 MHz550 MHz
Number of transistors2x1700 Million956 million
Manufacturing process technology40 nm55 nm
Texture fill rateno data22.00
Floating-point processing powerno data0.88 TFLOPS
ROPsno data16
TMUsno data40
L1 Cacheno data160 KB
L2 Cacheno data256 KB

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizelargelarge
Interfaceno dataPCIe 2.0 x16

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR3
Maximum RAM amount2x2 GB512 MB
Memory bus width256 Bit256 Bit
Memory clock speed900 MHz888 MHz
Memory bandwidthno data56.83 GB/s
Shared memory--

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectorsno dataNo outputs

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX1110.1 (10_1)
Shader Modelno data4.1
OpenGLno data3.3
OpenCLno data1.1
Vulkan-N/A

Synthetic benchmarks

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score.

HD 6990M Crossfire 9.12
+354%
ATI Mobility HD 4870 2.01

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

HD 6990M Crossfire 25759
+288%
ATI Mobility HD 4870 6631

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p99
+371%
21−24
−371%
Full HD108
+286%
28
−286%

FPS performance in popular games

Full HD
Low

Counter-Strike 2 45−50
+1533%
3−4
−1533%
Cyberpunk 2077 18−20
+375%
4−5
−375%
Resident Evil 4 Remake 16−18
+750%
2−3
−750%

Full HD
Medium

Battlefield 5 40−45
+720%
5−6
−720%
Counter-Strike 2 45−50
+1533%
3−4
−1533%
Cyberpunk 2077 18−20
+375%
4−5
−375%
Far Cry 5 30−33
+500%
5−6
−500%
Fortnite 55−60
+522%
9−10
−522%
Forza Horizon 4 40−45
+264%
10−12
−264%
Forza Horizon 5 27−30
+600%
4−5
−600%
PLAYERUNKNOWN'S BATTLEGROUNDS 30−35
+200%
10−12
−200%
Valorant 90−95
+131%
35−40
−131%

Full HD
High

Battlefield 5 40−45
+720%
5−6
−720%
Counter-Strike 2 45−50
+1533%
3−4
−1533%
Counter-Strike: Global Offensive 140−150
+244%
40−45
−244%
Cyberpunk 2077 18−20
+375%
4−5
−375%
Dota 2 65−70
+209%
21−24
−209%
Far Cry 5 30−33
+500%
5−6
−500%
Fortnite 55−60
+522%
9−10
−522%
Forza Horizon 4 40−45
+264%
10−12
−264%
Forza Horizon 5 27−30
+600%
4−5
−600%
Grand Theft Auto V 30−35
+750%
4−5
−750%
Metro Exodus 18−20
+500%
3−4
−500%
PLAYERUNKNOWN'S BATTLEGROUNDS 30−35
+200%
10−12
−200%
The Witcher 3: Wild Hunt 24−27
+200%
8−9
−200%
Valorant 90−95
+131%
35−40
−131%

Full HD
Ultra

Battlefield 5 40−45
+720%
5−6
−720%
Cyberpunk 2077 18−20
+375%
4−5
−375%
Dota 2 65−70
+209%
21−24
−209%
Far Cry 5 30−33
+500%
5−6
−500%
Forza Horizon 4 40−45
+264%
10−12
−264%
PLAYERUNKNOWN'S BATTLEGROUNDS 30−35
+200%
10−12
−200%
The Witcher 3: Wild Hunt 24−27
+200%
8−9
−200%
Valorant 90−95
+131%
35−40
−131%

Full HD
Epic

Fortnite 55−60
+522%
9−10
−522%

1440p
High

Counter-Strike 2 16−18
+240%
5−6
−240%
Counter-Strike: Global Offensive 70−75
+367%
14−16
−367%
Grand Theft Auto V 12−14
+500%
2−3
−500%
Metro Exodus 10−11
+400%
2−3
−400%
PLAYERUNKNOWN'S BATTLEGROUNDS 45−50
+140%
20−22
−140%
Valorant 100−110
+629%
14−16
−629%

1440p
Ultra

Battlefield 5 21−24
+450%
4−5
−450%
Cyberpunk 2077 7−8
+600%
1−2
−600%
Far Cry 5 18−20
+533%
3−4
−533%
Forza Horizon 4 21−24
+340%
5−6
−340%
The Witcher 3: Wild Hunt 12−14
+333%
3−4
−333%

1440p
Epic

Fortnite 18−20
+533%
3−4
−533%

4K
High

Counter-Strike 2 4−5 0−1
Grand Theft Auto V 20−22
+42.9%
14−16
−42.9%
Metro Exodus 5−6
+400%
1−2
−400%
The Witcher 3: Wild Hunt 10−11
+400%
2−3
−400%
Valorant 45−50
+380%
10−11
−380%

4K
Ultra

Battlefield 5 10−12
+450%
2−3
−450%
Counter-Strike 2 4−5 0−1
Cyberpunk 2077 3−4 0−1
Dota 2 30−35
+750%
4−5
−750%
Far Cry 5 9−10 0−1
Forza Horizon 4 14−16
+1400%
1−2
−1400%
PLAYERUNKNOWN'S BATTLEGROUNDS 9−10
+200%
3−4
−200%

4K
Epic

Fortnite 9−10
+200%
3−4
−200%

This is how HD 6990M Crossfire and ATI Mobility HD 4870 compete in popular games:

  • HD 6990M Crossfire is 371% faster in 900p
  • HD 6990M Crossfire is 286% faster in 1080p

Here's the range of performance differences observed across popular games:

  • in Counter-Strike 2, with 1080p resolution and the Low Preset, the HD 6990M Crossfire is 1533% faster.

All in all, in popular games:

  • Without exception, HD 6990M Crossfire surpassed ATI Mobility HD 4870 in all 50 of our tests.

Pros & cons summary


Performance score 9.12 2.01
Recency 12 July 2011 9 January 2009
Chip lithography 40 nm 55 nm

HD 6990M Crossfire has a 354% higher aggregate performance score, an age advantage of 2 years, and a 38% more advanced lithography process.

The Radeon HD 6990M Crossfire is our recommended choice as it beats the Mobility Radeon HD 4870 in performance tests.

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.6 5 votes

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3.7 9 votes

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