Radeon HD 2900 XT vs HD 7640G

Place in performance ranking	1021	889
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	no data
Architecture	Terascale 3 (2010−2013)	TeraScale (2005−2013)
GPU code name	Trinity	R600
Market segment	Laptop	Desktop
Release date	15 May 2012 (11 years ago)	14 May 2007 (17 years ago)
Launch price (MSRP)	no data	$399
Current price	$338	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	256	320
Core clock speed	497 MHz	743 MHz
Boost clock speed	686 MHz	no data
Number of transistors	1,303 million	720 million
Manufacturing process technology	32 nm	80 nm
Power consumption (TDP)	35 Watt	215 Watt
Texture fill rate	10.96	11.89
Floating-point performance	no data	475.5 gflops

Form factor & compatibility

Information on Radeon HD 7640G and Radeon HD 2900 XT compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size	medium sized	no data
Interface	IGP	PCIe 1.0 x16
Length	no data	241 mm
Width	no data	2-slot
Supplementary power connectors	no data	1x 6-pin + 1x 8-pin

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 type	System Shared	GDDR3
Maximum RAM amount	System Shared	512 MB
Memory bus width	System Shared	512 Bit
Memory clock speed	System Shared	1656 MHz
Memory bandwidth	no data	106.0 GB/s
Shared memory	+	no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

No outputs

2x DVI, 1x S-Video

API compatibility

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

DirectX	11.2 (11_0)	10.0 (10_0)
Shader Model	5.0	4.0
OpenGL	4.4	3.3
OpenCL	1.2	N/A
Vulkan	N/A	N/A

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 7640G 1.19

ATI HD 2900 XT 1.70
+42.9%

HD 2900 XT outperforms HD 7640G by 43% based on our aggregated benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

HD 7640G 459

ATI HD 2900 XT 659
+43.6%

HD 2900 XT outperforms HD 7640G by 44% in Passmark.

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:

Full HD

−40%

14−16
+40%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

−33.3%

4−5
+33.3%

Full HD
Medium Preset

Call of Duty: Modern Warfare	9−10 −33.3%	12−14 +33.3%
Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Forza Horizon 4	0−1	0−1
Hitman 3	1−2 +0%	1−2 +0%
Horizon Zero Dawn	1−2 +0%	1−2 +0%
Red Dead Redemption 2	3−4 −33.3%	4−5 +33.3%
Shadow of the Tomb Raider	7−8 −42.9%	10−11 +42.9%

Full HD
High Preset

Call of Duty: Modern Warfare	9−10 −33.3%	12−14 +33.3%
Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Forza Horizon 4	0−1	0−1
Hitman 3	1−2 +0%	1−2 +0%
Horizon Zero Dawn	1−2 +0%	1−2 +0%
Metro Exodus	2−3 +0%	2−3 +0%
Red Dead Redemption 2	3−4 −33.3%	4−5 +33.3%
Shadow of the Tomb Raider	7−8 −42.9%	10−11 +42.9%
The Witcher 3: Wild Hunt	4−5 −25%	5−6 +25%

Full HD
Ultra Preset

Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Forza Horizon 4	0−1	0−1
The Witcher 3: Wild Hunt	4−5 −25%	5−6 +25%

1440p
High Preset

Call of Duty: Modern Warfare	3−4 −33.3%	4−5 +33.3%
Hitman 3	4−5 −25%	5−6 +25%
Horizon Zero Dawn	8−9 −25%	10−11 +25%
Shadow of the Tomb Raider	5−6 −40%	7−8 +40%

1440p
Ultra Preset

Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	2−3 +0%	2−3 +0%
The Witcher 3: Wild Hunt	2−3 +0%	2−3 +0%

4K
High Preset

Call of Duty: Modern Warfare	1−2 +0%	1−2 +0%
Hitman 3	1−2 +0%	1−2 +0%
Horizon Zero Dawn	7−8 −42.9%	10−11 +42.9%
Red Dead Redemption 2	0−1	0−1

4K
Ultra Preset

Assassin's Creed Odyssey	0−1	0−1
Far Cry 5	3−4 −33.3%	4−5 +33.3%
Far Cry New Dawn	5−6 −40%	7−8 +40%

This is how HD 7640G and ATI HD 2900 XT compete in popular games:

ATI HD 2900 XT is 40% faster than HD 7640G in 1080p

Pros & cons summary

Performance score	1.19	1.70
Recency	15 May 2012	14 May 2007
Maximum RAM amount	System Shared	512 MB
Chip lithography	32 nm	80 nm
Power consumption (TDP)	35 Watt	215 Watt