Home GPU Comparison AMD Radeon R7 265 vs AMD Radeon HD 7950 Mac Edition

AMD Radeon R7 265 vs AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 and 3GB VRAM Radeon HD 7950 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265 's Advantages
Released 11 months late
Boost Clock925MHz
Lower TDP (150W vs 200W)
AMD Radeon HD 7950 Mac Edition 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 179.2GB/s)
768 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 265
1.894 TFLOPS
Radeon HD 7950 Mac Edition +51%
2.867 TFLOPS
VS

Graphics Card

Feb 2014
Release Date
Mar 2013
Volcanic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1400 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
179.2GB/s
Bandwidth
240.0GB/s

Render Config

-
SM Count
-
16
Compute Units
28
1024
Shading Units
1792
64
TMUs
112
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB

Theoretical Performance

29.60 GPixel/s
Pixel Rate
25.60 GPixel/s
59.20 GTexel/s
Texture Rate
89.60 GTexel/s
-
FP16 (half)
-
1.894 TFLOPS
FP32 (float)
2.867 TFLOPS
118.4 GFLOPS
FP64 (double)
716.8 GFLOPS

Graphics Processor

Pitcairn
GPU Name
Tahiti
Pitcairn PRO (215-0828062)
GPU Variant
Tahiti PRO (215-0821056)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
4.313 billion
212 mm²
Die Size
352 mm²

Board Design

150W
TDP
200W
450 W
Suggested PSU
550 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
2x 6-pin

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
5.1

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